import { getLyric } from 'api/song'
import { Base64 } from 'js-base64'
import { ERR_OK } from 'api/config'
export default class Song {
  constructor ({ id, mid, singer, name, album, duration, img, url }) {
    this.id = id
    this.mid = mid
    this.singer = singer
    this.name = name
    this.album = album
    this.duration = duration
    this.img = img
    this.url = url
  }
  getLyric () {
    if (this.lyric) {
      return Promise.resolve(this.lyric)
    } else {
      return new Promise((resolve, reject) => {
        getLyric(this.mid)
          .then((res) => {
            if (res.retcode === ERR_OK) {
              this.lyric = Base64.decode(res.lyric)
              resolve(this.lyric)
            } else {
              // reject('no lyric')
            }
          })
      })
    }
  }
}

export function createSong (musicData) {
  return new Song({
    id: musicData.songid,
    mid: musicData.songmid,
    singer: filterSinger(musicData.singer),
    name: musicData.songname,
    album: musicData.albumname,
    duration: musicData.interval,
    img: `https://y.gtimg.cn/music/photo_new/T002R300x300M000${musicData.albummid}.jpg?max_age=2592000`,
    url: `http://ws.stream.qqmusic.qq.com/${musicData.songid}.m4a?fromtag=66`
  })
}
function filterSinger (singer) {
  let ret = []
  if (!singer) {
    return
  }
  singer.forEach((item) => {
    ret.push(item.name)
  })
  return ret.join('/')
}
